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Anorthite
Anorthite

Omphacite
Omphacite



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Anorthite and Omphacite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
colorless.
Weak: colorless -- very pale green -- very pale green
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
TranslucentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.575-1.588
1.662-1.723
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Triclinic
Not Available
1.8 Birefringence
0.012-0.013
Not Available
1.9 Clarity
Transparent
TranslucentAnthony et al

Anorthite and Omphacite Optic Character

Anorthite and Omphacite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Anorthite and Omphacite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Anorthite and Omphacite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Anorthite and Omphacite Transparency

Similar to their colors, Anorthite and Omphacite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Anorthite is Transparent while Anorthite is Transparent in appearance.